The wireless way to keep your 3D Active Glasses fully charged. Samsung�s sleek 2011 Wireless Charging Hub eliminates the need for wires, leaving your entertainment center clean and uncluttered. Simply plug it in, and place up to four pair of 3D Active Glasses around the rim. Your 3D devices will always be charged and ready for you to enjoy your favorite 3D programming. Charge up to 4 pairs of Samsung 3D Active Glasses. Compatible with SSG-3300GR, SSG-3300CR, SSG-3700CR.